Another Power Draw Question

[Ciderino]

My question: Can I keep the old 680 in the system without frying my PSU?

 

Background: I want to upgrade to a GTX 1070/1080 from a GTX 680 [1]. While I personally use the system for gaming, I occasionally let my GF render her architecture on my System. This pretty much maxes out the CPU as well as the GPU. So I am thinking about leaving the old GPU in the system along the new one to assists in rendering.

 

I allready looked up the max power draw of the System components (worst case):

 

i7 3770k: 145W [2]

GTX 680: 355W [1]

GTX 1080: 310W/390W (OC) [3]

Rest: 100W [4]                 

Total: 910W / 990W (OC)

 

I already have a 850W Gold PSU [5] in the system. Is that a problem or just fine? Should I just get rid of the 680?

 

 

[1] GTX 680 http://www.gainward.com/main/vgapro.php?id=868   Power: http://www.techspot.com/review/525-gainward-geforce-gtx-680/page10.html

[2] i7 3770k http://www.anandtech.com/show/5771/the-intel-ivy-bridge-core-i7-3770k-review/20

[3] GTX 1080 http://www.tomshardware.com/reviews/nvidia-geforce-gtx-1080-pascal,4572-10.html

[4] http://www.buildcomputers.net/power-consumption-of-pc-components.html

[5] http://www.antec.com/product.php?id=720&fid=235&lan=us

Edited June 23, 2016 by Ciderino
Link correction

[don_svetlio]

If you want rendering horsepower get a 290X - nothing can even come close to the raw computing horsepower of that thing. As for your system, grab a 1070 for the better value and sell the 680 - pointless to have it in there

[Narnash]

Wich GTX 1080 you use that you get a max. of 390W ?(btw you linked the CPU twice)  the biggest 1080 should have 2 x 8pin + PCIe .... so 375W as a absolute  maximum (wich need to be BIOS modified to use it I guess)

 

And for the GTX 680 the same ... in the linked review you can see the full load setup power draw .... by the conections of the GTX 680 you have it can't draw more than 300W

 

I say that you 850W should be fine for all. But I must say that is's probably not woth it to use the GTX 680, kinda pointless I would sell it.

[Ciderino]

13 minutes ago, Narnash said:

Wich GTX 1080 you use that you get a max. of 390W ?(btw you linked the CPU twice)  the biggest 1080 should have 2 x 8pin + PCIe .... so 375W as a absolute  maximum (wich need to be BIOS modified to use it I guess)

 

And for the GTX 680 the same ... in the linked review you can see the full load setup power draw .... by the conections of the GTX 680 you have it can't draw more than 300W

 

I say that you 850W should be fine for all. But I must say that is's probably not woth it to use the GTX 680, kinda pointless I would sell it.

Thanks for the insights!  I didn't realize it was the whole system indeed!

[Narnash]

1 minute ago, Ciderino said:

Thanks for the insights!  I didn't realize it was the whole system indeed!

I qould say simply test it if it's worth to use the 680 for rendering the PSU should be able handle your system with both GPUs.

Render the same thing once with both cards inside and once only the GTX 1080. You may check GPU-Z for the power draw of the GTX 680 (it an show the usage of the TDP wattage)

Pic source: http://www.techpowerup.com/forums/threads/gpu-z-power-consumption-question.178691/  (just to show this function)

 

The Gainward GTX 680 has a default TDP of 195W (with a non modified bios) so just multiply the TDP with the Power consumption while rendering than you can see that the used power from the GTX 680 for the extra rendering performance isn't worth it.

[STRMfrmXMN]

7 hours ago, Ciderino said:

My question: Can I keep the old 680 in the system without frying my PSU?

 

Background: I want to upgrade to a GTX 1070/1080 from a GTX 680 [1]. While I personally use the system for gaming, I occasionally let my GF render her architecture on my System. This pretty much maxes out the CPU as well as the GPU. So I am thinking about leaving the old GPU in the system along the new one to assists in rendering.

 

I allready looked up the max power draw of the System components (worst case):

 

i7 3770k: 145W [2]

GTX 680: 355W [1]

GTX 1080: 310W/390W (OC) [3]

Rest: 100W [4]                 

Total: 910W / 990W (OC)

 

I already have a 850W Gold PSU [5] in the system. Is that a problem or just fine? Should I just get rid of the 680?

 

 

[1] GTX 680 http://www.gainward.com/main/vgapro.php?id=868   Power: http://www.techspot.com/review/525-gainward-geforce-gtx-680/page10.html

[2] i7 3770k http://www.anandtech.com/show/5771/the-intel-ivy-bridge-core-i7-3770k-review/20

[3] GTX 1080 http://www.tomshardware.com/reviews/nvidia-geforce-gtx-1080-pascal,4572-10.html

[4] http://www.buildcomputers.net/power-consumption-of-pc-components.html

[5] http://www.antec.com/product.php?id=720&fid=235&lan=us

850W is plenty and your Antec PSU is fine. 

[Quaker]

A GTX-1080 would use less power than an old 680.

 

Those power draws you quoted are for the entire system, not just the graphics cards.

 

It wouldn't be worth the hassle to leave the 680 in there.

 

With a single GTX-1080, a 550watt power supply is enough. 850watts is more than "more than enough".

[Ciderino]

13 minutes ago, Quaker said:

A GTX-1080 would use less power than an old 680.

 

Those power draws you quoted are for the entire system, not just the graphics cards.

 

It wouldn't be worth the hassle to leave the 680 in there.

 

With a single GTX-1080, a 550watt power supply is enough. 850watts is more than "more than enough".

Yeah, the PSU was on heavy discount when I built the system and all reviews said it was really overbuilt, so i figured it would be a good deal XD.

And thanks for the answer